When a stereoisomeric reactant gives a stereoisomeric product, the phenomenon in which a specific stereoisomer gives a specific stereoisomer is called stereospecific, and such a process is called a stereospecific process. According to this definition, different stereoisomers of the reactants give different stereoisomers of the product. A typical example is the Walden inversion. The addition of bromine to an alkene is stereospecific. In other words, in the addition of bromine to the geometric isomers of 2-butene, the trans isomer stereospecifically gives meso-2,3-dibromobutane, and the cis isomer stereospecifically gives (±)-2,3-dibromobutane. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
立体異性体をもつ反応物が立体異性体をもつ生成物を与える際,特定の立体異性体が特定の立体異性体を生じる現象を立体特異性,その種の過程を立体特異的過程という。この定義によると,反応物の別の立体異性体は生成物の別の立体異性体を与える。典型的な例はワルデン反転である。アルケンに対する臭素の付加は立体特異的である。すなわち2‐ブテンの幾何異性体への臭素の付加において,トランス体はメソ‐2,3‐ジブロモブタンを,シス体は(±)‐2,3‐ジブロモブタンをそれぞれ立体特異的に与える。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
<<: Conformation - Rittaihaiza (English spelling) conformation
>>: Stereoselectivity - stereoselectivity
A district in the eastern part of Munakata City i...
…(3) Altitude of an aircraft. Generally speaking,...
The fourth Shogun of the Kamakura Shogunate. The ...
...general term for crystalline metamorphic rocks...
…In philology, the Amāli by al-Qālī (901-967) is ...
American psychologist. Born in England. A student...
The science that studies the structure of the atom...
The protagonist of San'yutei Encho's "...
…(1) The principle that when determining facts in...
...The guilds, which were made up of merchants an...
…They are also cultivated as garden trees. The fa...
...A bridge over Gojo-dori (before 1589, Matsubar...
A Chinese Ming Dynasty maritime merchant and lead...
The opening of the duct is called the major papil...
...The plant commonly referred to as hibiscus is ...